CVE-2026-15337

python-django: An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8

CVE-2026-15337 is fixed in 2 products on 1 platform, first by SUSE-SU-2026:3503-1, released August 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0059
48th percentile

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. `django.utils.translation.check_for_language()` is subject to a potential denial-of-service attack when given many distinct, very long language codes, which are retained as keys in an in-memory cache and consume process memory. Such codes reach the function through the `django.views.i18n.set_language()` view, which is not routed by default. The consumed memory is bounded, since request data is limited by the `DATA_UPLOAD_MAX_MEMORY_SIZE` setting (default 2.5 MB) and the cache holds a fixed maximum number of entries. Earlier, unsupported Django series (such as 5.1.x, 5.0.x, and 4.2.x) were not evaluated and may also be affected. Django would like to thank Jaeyoung Jang for reporting this issue.

Where it's fixed

ProductFixed inFixReleased
Linux
python-Django · opensuse-leap 16.0 5.2.4-bp160.11.1 OPENSUSE-SU-2026:21543-1 Aug 6, 2026
python-Django · sles 15.7 4.2.11-150600.3.65.1 SUSE-SU-2026:3503-1 Aug 5, 2026
python-django · Debian 12.15 (bookworm) 3:3.2.25-0+deb12u4 DEBIAN-CVE-2026-15337 Aug 13, 2026
python-django · Debian 14 3:5.2.17-1 DEBIAN-CVE-2026-15337 Aug 13, 2026

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